Prosecutors have presented a grand jury with their evidence against D4vd, sources confirmed to Us Weekly, as Los Angeles authorities continue to pursue murder charges against the singer several months after the dismembered body of 15-year-old Celeste Rivas was recovered from the trunk of a Tesla registered in his name. A prosecution source who spoke on condition of anonymity confirmed to Us Weekly grand jurors have already started mulling evidence in the case. They've also heard key testimony from case witnesses, the source said. The convening of the grand jury was first reported by TMZ on Monday, December 29. Prosecutors are intent on seeing the "Romantic Homicide" singer, 20, tried for Rivas' killing, the source said, noting the Los Angeles Police Department's "meticulous" investigation into the teen's suspicious death, and adding nothing about the probe was "rushed." Us Weekly had previously confirmed that the LAPD launched a death investigation after officers were dispatched to a Hollywood tow yard on September 8 on a report of "a foul odor coming from a vehicle." Authorities subsequently located human remains inside the Tesla registered to D4vd (born David Anthony Burke). The car was found and towed one week after it was reportedly abandoned. Soon after the grisly find, a spokesperson for D4vd told NBC News in a statement that the musician had "been informed about [what] happened" and was "fully cooperating with the authorities" despite being on tour. Burn Cage Found in D4vd's Home Amid Celeste Rivas' Death Investigation Law enforcement ultimately confirmed the identity of the body found in the car as 15-year-old Rivas, noting that the remains were "severely decomposed." She had also been dismembered. Rivas had been missing since April 2024. She was last seen in Lake Elsinore, California, located approximately 70 miles southeast of Los Angeles. Rivas' mother told TMZ in September that her daughter had a boyfriend named David. As Us Weekly has reported, Rivas and D4vd both had the same "shhhh" tattoo on their right index fingers. While the singer was still on tour, police searched his home for clues. Officials have not revealed Rivas' cause of death, but they have been handling the investigation as a homicide since day one. In the aftermath of Rivas' body being discovered, D4vd canceled his U.S. and international tour dates, which were originally scheduled to run through this month. His music label, Interscope, and its parent company, UMG, also reportedly halted the September release of the deluxe version of his Withered album. D4vd first gained popularity in 2022. Later that year, he signed with Interscope Records. He released his debut album, Withered, in April and embarked on tour in August. D4vd has not responded to Us Weekly's repeated requests for comment, and his lawyer, Blair Berk, could not be reached by press time. Recently, a private investigator hired by D4vd's former landlord revealed the presence of a burn cage in his onetime Hollywood Hills abode. Steve Fischer took to X to talk about finding the incinerator, adding it was unused and still in its original packaging. Fischer said that the incinerator burns "at 1,600 degrees," and noted crematoriums typically set their equipment to 1,400 degrees. "To be very clear, this burn cage was not used," wrote Fischer on X. "It was still new and in the box. However, given that Celeste Rivas Hernandez's remains were ultimately found in the Tesla frunk, the presence of an incinerator at the same residence associated with that vehicle necessarily raises questions about intent." Fischer shared images of the burn cage with his X post. "The Burn Cage was not taken during the search warrant and because it was not used it appears it's not of importance to any possible criminal investigation," Fischer wrote. "But we think it's important [in] context, even if not criminal. The burn cage and other related items were delivered to the residence under a false name, although the deliveries were accepted at the property."